Problem with 07 Nightster

[Chris07]

Ok, I just started my bike and I heard a big pop out of the TB. What the hell just happened?! It seems to be idling fine but I didn't want to trake it for a ride till I got some input.

[MrMarty51]

Did you try reving it in neutral just a bit to see what would happen????

[Chris07]

Did you try reving it in neutral just a bit to see what would happen????

Yeah, it sounds fine now. just wondering why it would pop like that.

[gruss]

Lean pop on start up ?
Those EFI bikes will do it too.....heck mine does it once a week at least.....I just ride the damn thing....
If you have no running issues, run out the fuel, and try it again...it could very well be fuel quality.....g

[Chris07]

Thanks gruss. I just took it for a ride and no issues. This is the first time something like this has happened to me so it kinda got me worried.

[Monk]

Yeah, cheap gas can be problematic... I use Marathon 93 octane almost exclusively these days. It contains no middle-eastern product, and no ethanol at the moment (if the Marathon station has an "STP" sticker on its big sign). I seem to get about 10% better mileage with it over anything else.
And the bike loves it.

[MOTOCROSSER]

yep,my 09 nightster does the same thing every once in awhile!!! i run high octane gas in it all the time!!

[gruss]

good call on the high octane fuel, and perish the thought if ethanol fuels are used...they are just plain bad news for run-ability....IMHO

[Chris07]

I use Exxon. There is a Sunoco station nearby, would that be better?

[Crocodile56]

Chris07, I can answer that in one word!

Normal!:scoot

[MOTOCROSSER]

sunoco for me !by the way what ever happened to the sunoco ultra 94!??no where to be found!!!but whenever i`m near empty i`ll take any brand of gas!!!!

[gruss]

sunoco for me !by the way what ever happened to the sunoco ultra 94!??no where to be found!!!but whenever i`m near empty i`ll take any brand of gas!!!!

Sunoco ? thats like 1979 isnt it ??....LOL !!!

Were gettin old Moto....HEHE

[Rainrider]

I have a related question (sorry for buttin' in to your thread Chris07). What are the ramifications of using lower octane fuel occassionally? I normally run 93, but sometimes it is unavailable. I've filled up with 87 twice and 89 once over teh last three years. Frankly, I couldn't tell any difference, other than the considerable cost savings .

[gruss]

I have a related question (sorry for buttin' in to your thread Chris07). What are the ramifications of using lower octane fuel occassionally? I normally run 93, but sometimes it is unavailable. I've filled up with 87 twice and 89 once over teh last three years. Frankly, I couldn't tell any difference, other than the considerable cost savings .

Well, generally when the octane rating is low, it can cause detonation, or pre-detonation of the fuel. It will "ping" and eventually damage the piston chambers and valves....

[Rainrider]

Haven't heard the pinging, but I seldom get on it hard. I'll stick to the 93! Thanks Gruss.